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Gear / Technical Help => Playback Forum => Topic started by: 1st set only on August 06, 2005, 06:43:40 AM
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My wife just dug an old P.A. out of the attic its a peavy xr680c power mixer. it has 8 channels and seems to be in great condition. I need to get speakers for it. On the back it says.....
SPEAKERS
MINIMUM AMPLIFIER LOAD
2 OHMS
SPEAKER JACKS PARALLELED
210 W / 4OHM
300 W 2OHM
30 V RMS
Most of the speakers that i have seen are 8 ohm there is not much of a selection for 4 or 2ohm. is it ok to use an 8 ohm speaker with this?
Sorry this is in the playback area but dunno where else it should be.
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bump?
can anyone help?
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There is a manual on the web http://www.peavey.com/media/pdf/manuals/80301434.pdf
I'm making some assumptions but yes you can probably use an 8-ohm (or higher) speaker with no problem.
The label indicating speaker jacks are paralleled means that when you plug in multiple speakers, the speakers are attached to the amplifier in parallel so if you plug in a single 8-ohm speaker, it sees an 8-ohm load, if you plug in two 8-ohm speakers, it sees a 4-ohm load. You plug in two 4-ohm speakers, it sees a 2-ohm load. Since the minimum load is two ohms, you would not want to plug in a pair of 2-ohm speakers as that would risk damage to the amp. Three 4 ohm speakers would also be bad. The latter two examples would present a load of less than 2 ohm.
Edit: Also, I would recommend against mixing speakers of different rated loads or efficiencies since you will not get even sound from both.
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My wife just dug an old P.A. out of the attic its a peavy xr680c power mixer. it has 8 channels and seems to be in great condition. I need to get speakers for it. On the back it says.....
SPEAKERS
MINIMUM AMPLIFIER LOAD
2 OHMS
SPEAKER JACKS PARALLELED
210 W / 4OHM
300 W 2OHM
30 V RMS
Most of the speakers that i have seen are 8 ohm there is not much of a selection for 4 or 2ohm. is it ok to use an 8 ohm speaker with this?
Sorry this is in the playback area but dunno where else it should be.
Is that ouput per channel or is it a mono rig?
If stereo, get two 4 ohm PA columns that are rated at 250 - 300 watts. Use one per channel.
There aren't many amps in the really world that like pushing 2 ohm loads for extended periods of time.
4 ohm loads are typical for sound reinforcement.
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you won't damage anything by going with higher impeadance... just less power from the amp.
Matt
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Thanks Guys